Published March 15, 2012 A 'Grizzly' Presentation This patient exhibited multiple pigmented lesions in both maculae. Is this indicative of a very serious underlying condition? By Mark T. Dunbar, O.D. A 55-year-old black male presented with complaints of blurred vision at both distance and near. "Bear Tracks" CHRPE Benign pigmented fundus lesions that commonly discovered during routine eye examination. Clinical Features Usually asymptomatic. Signs: Well-demarcated, round, solitary or multiple gray-brown or black lesions which have flat or scalloped margins. May be encircled by hyper- or hypo-pigmented halo.
Bear Tracks Retina Image Bank
Congenital hypertrophy of the retinal pigment epithelium (CHRPE) is a generally asymptomatic congenital hamartoma of the retina. Typical (solitary and grouped) and atypical variant forms are described. Atypical CHRPE is associated with familial adenomatous polyposis (FAP). Contents 1Disease Entity 1.1Disease 1.2Epidemiology 1.3Risk Factors Keywords: Congenital hypertrophy of the retinal epithelium (CHRPE), Gardner syndrome, Familial adenomatous polyposis (FAP), Grouped pigmentation of the retina, Bear tracks, Colon cancer Go to: 1. Introduction The retina is an ocular structure responsible for gathering gross visual stimuli that enter the eye and transforming them into neuronal signals transported to the brain for interpretation. Truly, it comprises two distinct entities that work in concert with each other: the neural retina and the retinal pigmented epithelium. Gardner syndrome is a rare phenotypic variant of familial adenomatous polyposis (FAP). Both Gardner syndrome and FAP are characterized by the numerous adenomatous polyps lining the intestinal mucosal surface. [1] However, Gardner syndrome has characteristic polyps in the colon and osteomas that help distinguish the disease from FAP. [2]
Atlas Entry Congenital hypertrophy of the retinal pigmented epithelium (CHRPE) in a "bear
The retinal pigment epithelium (RPE) is a pigmented layer of the retina which can be thicker than normal at birth (congenital) or may thicken later in life. Areas of retinal pigment epithelial (RPE) hypertrophy usually do not cause symptoms. They are typically found during routine eye examinations. Diffuse bear-track retina: profound, bilateral, grouped congenital pigmentation of the retinal pigment epithelium in an infant Oliver R. Marmoy, MSc Charlotte Blackwell, Most Sarah Cornelius, BSc Dorothy A. Thompson, PhD Robert H. Henderson, MD Published: October 22, 2020 DOI: https://doi.org/10.1016/j.jaapos.2020.08.003 Congenital hypertrophy of the retinal pigmented epithelium (CHRPE) in a "bear tracks" configuration Category (ies): Genetics, Retina Contributor: Jesse M. Vislisel, MD Posted: August 15, 2013 Congenital hypertrophy of the retinal pigment epithelium is a rare benign tumor of the ocular fundus that may vary according to three types. It is frequently asymptomatic and diagnosed during routine ophthalmology exam.
Bear Tracks Pigmentation Retina Image Bank
The differential diagnosis for multiple hyperpigmented lesions in the fundus includes choroidal nevi, RPE hyperplasia secondary to previous trauma or inflammation, pigmented lattice degeneration, congenital hypertrophy of the retinal pigment epithelium (CHRPE), multifocal CHRPE ("bear tracks"), malignant melanoma of the choroid, and RPE hamartom. "bear tracks" are often seen by ophthalmologists and do not indicate a greater risk of developing intestinal cancer (1). In contrast, pigmented retinal lesions seen in FAP are multifocal, bilateral (in 86% cases) with an irregular border and a tail of depigmentation on one margin; these
Diffuse bear-track retina: profound, bilateral, grouped congenital pigmentation of the retinal pigment epithelium in an infant - ScienceDirect Journal of American Association for Pediatric Ophthalmology and Strabismus Volume 24, Issue 6, December 2020, Pages 384-386 Short Report Uploaded on Jan 13, 2020. Last modified by Caroline Bozell on Jan 14, 2020.; Rating Appears in Retina and Choroid Condition/keywords bear tracks, amelanotic, pediatic retina, congenital hypertrophy of the retinal pigment epithelium (CHRPE)
Bear Tracks, CHRPE Retina Image Bank
Description. Ultrawide field fundus photograph of a 79-year-old patient who was incidentally found to have extensive bear track lesions in both eyes. Left eye was treated for NVG in the past and bear tracks were only visible temporal to the macula where there was no laser scars. He was referred to be seen by gastroenterologist and have a. Overall, 84% of CHRPE lesions were located in the retinal periphery compared to 16% within the posterior pole. Tourino et al described the most common location for CHRPE amongst FAP individuals was in the retinal equator. 9 92% of FAP individuals had CHRPE present proximal to the retinal vessels compared to 7% in controls (p < 0.001). 9.
